Car-door lock.



C. F. RAKOW.

CAR DOOR LOCK.

APPLICATION FILED NOV. 13. 1914.

1,1 5 1 ,392. Patented Aug. 24, 1915.

30 Z J 15 I mint/9 a CARL F. RAKOW, 015 WHEATLAND, NORTH DAKOTA.

can-noon LocK.

Specification of Letters Patent.

Patented Aug. 24, 1915.

Application filed November 13, 1914. Serial No. 871,971.

To aZZ whom it may concern:

Be it known that I, CARL F. ,RAKOW, a citizen of the United States, residing at Wheatland, in the county of Cass and State of North Dakota,have invented certain new and useful Improvements in Car Door Locks, of which the following'is a specification.

My invention relates to new and useful improvements in car doors and more particularly to locking means therefor which forms a part of my pending application for patent filed Feb. 12, 1914, Serial #818,203 and has for its primary object to provide a simple, extremely useful and inexpensive lock that will effectively lock car doors in closed position so that leakage of grain or accidental derangement of the doors is prevented.

An important object of my invention is to provide a lock of the character described which consists of vertical slidable bars that are mounted upon a car door and carry look ing tongues that are arranged to fit within recesses in the sides of the door frame, said locking tongues being provided with independent locking means and said bars being operable by a novel form of operating means.

Another important object of my invention is to provide a lock of the character described which is simple asto construction, reliable and efficient in operation and inexpensive to manufacture and install.

The above and additional objects are accomplished by such means as are illustrated in the accompanying drawings, described in the following specification and then more particularly pointed out'as claimed.

With reference to the drawings,wherein I have illustrated the preferred embodiment of my invention as it is reduced to practice, and throughout the several views of which similar reference numerals designate corresponding parts: Figure 1 isa fragmentary front elevation showing my improved looking means in locked position and attached to a car door consisting of two door sections, Fig. 2 is a longitudinal fragmentary sectional view taken through one of the door sections, Fig. 3 is a verti'calsectional view taken through the lower door section, and Fig. 4 is a detail perspective view of the op erating handle for the lockingmeans.

Referring to the drawings by characters of reference the numeral-1 designates as an entirety a door frame of a car in which is mounted a door forming thesubject matter f my pending applicatiomSerial #818,203 which consists of two sections arranged one above the other and designated respectively 2 and 3.

My improved locking means comprises vertical bars horizontally slidable 4 and 5 that are mounted upon the outside faces of the door sections 2 and 3 and each bar has secured thereto adjacent the ends thereof locking plates 6 and 7. The bars 4 and 5 serve as connecting mediums for the members 6 and 7 and are supported thereby. Each ofv the locking plates is secured intermediate its ends transversely of thebars 4 and 5 so as to provide projecting locking tongues 9 that extendoutwardly from the bars and are designed to fit within the recesses 10 formed in the door frame 1. The plates 6 and 7 are inwardly ofiset as at 11 and extend inwardly from the bars 4 and 5 toward the center'of the door in engagement with the outer faces of the door sections. The plates in being offset fit snugly about the inner longitudinal edges of the bars 4 and 5. s

The inwardly extending portions of the plates 6 and 7 are designated 12 and are slidable through angular guides plates 13 that are secured upon the outer faces of the door sections and arranged longitudinally thereof in pairs, each plate of a pair spaced at its inner longitudinal edge from the other plate of the pair. Corrugations 13 are formed upon the outer faces of the portions 12 of the plates, said portions 12 being longitudinally slotted.

Screw threaded bolts 14 in the door are inserted through the space between the inner edges of the plates 13 of the door sections 2 and 3 and the slots in the corrugated portions 13- The outer end of each bolt is enlarged to provide afiange or head 15 so as to prevent removal of the locking lever lfiwhich is turned and adjustably mounted upon each bolt. An elongated corrugated plate 17 is mounted upon each bolt 14 between the locking lever 16 and corrugated faces 13 of the plates 6 and 7. 1 i It will be readily seen that when the looking lever 16 is turned to bring the corrugated plates 17 into cooperatingengagement with the corrugated surface of each of the plates and T the locking plate will be held ing plates into and out of locking position Zand means to independently lock the locking plates in locked position operating in con in rigid locked position and subsequently the tongues 9. I I 7 As a means for sliding the bars 4 and 5 1O provide in connection with each door section a horizontal operating shaft 19 that is journaled in the bearing member 20 ar ranged centrally of the ends of each section. The operating shaft 19 is provided with screw threads 21 at'each end, said screw threads being arranged in opposite directions. Carried centrally of the ends of each of the bars 4 and 5 is an approximately U- shaped operating rod receiving member 22 which is provided centrally of its ends With an approximately cylindrical enlarged and internally screw threaded portion 23. The members 22 are secured at their ends by bolts or other suitable fastening means 2 1. The portions 23 receive the screw threaded ends 21 of the operating shafts 19.

Formed upon the shaft 19 upon opposite sides of the bearing member 20 are angular enlarged Wrench fitting portions 25 and 26.

-When the shaft is rotated the bar-s 4: and 5 are moved according to the direction of the rotation of the shaft so as to bring'about the looking or unlocking action, it being necessary of course to unlock the individual locking means for the plates 6 and 7.

The, door sections are similar to the ones described and illustrated in my pending application for patent, Serial #818,203 and are supported swingingly by hangers 29 and 30 that are carefully described and illustrated in the above mentioned application.v

With reference to the foregoing description and accompanying drawings it will be readily seen that I have provided a simple 7 and inexpensive car door lock which may be readily operated so as toefiectively lock car doors and is cheap to manufacture.

In practice, I have found that theform of'my invention, illustrated in the drawings and referred to in the above description, as the preferred embodiment, is the most eflicient and practical; yet realizing that the conditions concurrent. with the adoption of my device Willnecessar-ily vary, I desire to emphasize the fact that various minor changes in details of construction, proportion and arrangement of parts may be resorted to, when required, without sacrificing any of the advantages of my invention, as set forth. r

What is claimed is 1. In a car door lock, the combination with a door of locking plates slidable upon the doors adjacent the ends thereof, bars connecting certain of the locking plates with each other and slidable upon the door,

are. so that the tongues9 move into the recesses."

means to slide said bars to move said locknection with the inner ends of each plate.

2. The combination with a car door of locking means therefor, comprising vertical sli'dable bars, locking plates secured at the endsof the bars transversely thereof and projecting outwardly from the bars on either side thereof, a horizontal rotary shaft operatively connected at its endswith said bars, means to rotate said shaft'to move said bars back and forth, said outer extended portions of the locking plates arranged to extend within recesses in the'frame ofzthe door, guide plates slidably receiving the inner ends of the locking plates and means to lock each of the locking plates'in locked position. I e

'3. In a car door loclr,-the combination with a door, of means for locking said door in closed position comprising locking plates slidably mounted at theends of the door and having the outer faces of their inner ends corrugated, guide means upon the door to slidably receive the inner corrugated ends of the locking plates, corrugated plates carried upon the door, means for forcing said corrugated plates into locking engagement with the corrugated inner ends of the looking plates and means for moving said locking plates into and out of locking engagement with the door frame.

4. In a car door lock the combination with a door of means for locking said door in closed position comprising bars vertically and slidably mounted upon said door, looking plates mounted upon said bars in pairs, said plates arranged to extend for a portion of their length within recesses of the door frame of the car, saidplates having their inner ends formed with a corrugated outer surface, guide plates for said locking plates, said corrugated portions of the locking plates being longitudinally slotted, bolts extending through the slots and carried by said door, a lockinglever adjustably mounted upon each of said bolts, a corrugated plate loosely mounted upon each of said bolts and arranged to be moved into and out of locking engagement with the corrugated surface of said locking plates and means for moving said locking plates into and out of locking position operatively connected with said vertical bars.

In testimony vwhereof I affix my signature in presence of two witnesses.

CARL F. RAKOW.

/Vitnesses:

H. S. POWLISON, M. M. PowLIsoN.

Copies of this patent maybe obtained-for five cents each, by addressing the Commissioner of Patents r Washington, D. G. V 

